old Nc_router vs PC

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I have an old CNC-machine witch is connected to a PC. The program is from 1989, and my task is to change the PC to a newer one.
After many hours an tears the new PC and the machine finely get connected by COM1 serialport. The only problem is that the machine doesn´t behave as it should, it seams lost and confused. Signal problem, or something with with that the new computer is too new?? CPU speed? I have tryed everything I can think of.

There is one line inside the mainprogram itself that shows the port. "COM1,9600,E,7,2,RS,CS0,DS0,CD0
Whitch tell me this: bits9600,parityEven,databits7,stopbits2, the last four I don´t know what they means.

The old PC who works just fine is a Compaq Presario 425, with 25MHz I believe. And the program runs in dos 6.22

The "new is about 100MHz", therefor I tried to run the program in dosbox" but I get the same results.
Also when I try to run the program directly from DOS It is the same problem.
It doesn't sound to me like your question has anything to do with Igor Pro.

January 10, 2011 at 08:10 am - Permalink